Research Article
Optimum Selection of Mining Plans for Pillars Containing Interlayers Based on Numerical Simulation
Table 2
Minimum principal stress analysis results according to mining plan 1.
| | Mining panel | Stress concentration area | Minimum principal stress value (MPa) | Pillar situation | | Before mining | After mining | Increment (MPa) | Increase (%) |
| | C | 4104 roof | −1.75 | 0.74 | 2.49 | 142 | Mined | | B | 4100 right pillar | −1.75 | 0.46 | 2.21 | 126 | Unmined | | D | — | — | — | — | — | — | | A | — | — | — | — | — | — |
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